Simple Optical Methods for the Recognition of Atrial Flutter, Especially at Slow Atrial Rates

Author:

RYTAND DAVID A.1,FRANK ARTHUR1,PROFANT GENE R.1

Affiliation:

1. From the Department of Medicine, Stanford University School of Medicine, Palo Alto, California.

Abstract

Simple optical methods, particularly the use of a cylindrical lens, are described which facilitate the examination of electrocardiograms and the differentiation of atrial flutter from atrial tachycardia with block. Results of utilizing the methods indicate that what may seem to be an isoelectric line of the latter is sometimes but an optical illusion, especially at slow atrial rates. Continuous atrial electrical activity of flutter has been detected at atrial rates as slow as 88 per minute. Some of these findings are relevant to certain considerations on the mechanisms of atrial arrhythmias.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Physiology (medical),Cardiology and Cardiovascular Medicine

Reference8 articles.

1. Atrial Tachysystole with Block

2. LOWN B. AND LEVINE H. D.: Atrial Arrhythmias Digitalis and Potassium. New York Landsberger Medical Books Inc. 1958 222 PP.

3. LEWIS T.: The Mechanism and Graphic Registration of the Heart Beat ed. 3. London Shaw & Sons Ltd. 1925 529 pp.

4. Auricular flutter and fibrillation;JOLLY W. A.;Heart,1911

5. Atrial rate in patients with flutter: Relationship between atrial enlargement and slow rate;RYTAND D. A.;Stanford Med Bull,1958

Cited by 4 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Toxische Myokardschädigung;Myokarderkrankungen Perikarderkrankungen Herztumoren;1989

2. Atrial Tachysystole (Flutter?) with Apparent Exit Block;Circulation;1969-08

3. Electrocardiographic patterns at the termination of atrial flutter;American Heart Journal;1967-12

4. The Mechanism of Canine Atrial Flutter;Circulation Research;1967-05

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